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    <title>Document</title>
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    <table border="1">
        <thead>
            <caption>优秀学生信息表格</caption>
        </thead>

        <tbody>
            <tr>
                <!-- 把td 替换成th 第一列 -->
                <th>年级</th>
                <th>姓名</th>
                <th>学号</th>
                <th>班级</th>
            </tr>
            <tr>
                <td rowspan="2">高三</td>
                <td>张三</td>
                <td>110</td>
                <td>三年二班</td>
            </tr>
            <tr>
                <td>赵四</td>
                <td>120</td>
                <td>三年二班</td>
            </tr>
        </tbody>

        
        <tfoot>
            <tr>
                <td>评语</td>
                <td colspan="3">你们都很优秀</td>
            </tr>
        </tfoot>

    </table>
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